package com.leyou.item.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.leyou.item.item.pojo.Brand;
import com.leyou.item.mapper.BrandMapper;
import com.leyou.item.pojo.PageResult;
import com.leyou.item.service.IBrandService;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import tk.mybatis.mapper.entity.Example;

import java.util.List;

/**
 * @author XiaoLuo
 * @ClassName: CategoryService
 * @Description: ${todo}
 * @date 2019/4/13 17:05
 */
@Service
public class BrandService implements IBrandService {

    @Autowired
    private BrandMapper brandMapper;
    @Override
    public PageResult<Brand> queryBrandByPageAndSort(Integer page, Integer rows, String sortBy, Boolean desc, String key) {
//        开始分页
        PageHelper.startPage(page,rows);
//        过滤
        Example example = new Example(Brand.class);
        if (StringUtils.isNotBlank(key)) {
            example.createCriteria().andLike("name","%"+key+"%").orEqualTo("letter",key.toUpperCase());
        }
        if(StringUtils.isNotBlank(sortBy)){
//            排序
            String orderByClause = sortBy+(desc ? " DESC" : " ASC");
            example.setOrderByClause(orderByClause);
        }
//        查询
        Page<Brand> pageInfo = (Page<Brand>) brandMapper.selectByExample(example);
//        返回查询结果
        return new PageResult<>(pageInfo.getTotal(),pageInfo);
    }

    @Override
    @Transactional
    public void saveBrand(Brand brand, List<Long> cids) {
//        新增品牌信息
        this.brandMapper.insertSelective(brand);
//        新增品牌和分类中间表
        for (Long cid : cids) {
            this.brandMapper.insertCategoryBrand(cid,brand.getId());
        }
    }
}
